wavelength calibration
41Gamma correction — Gamma correction, gamma nonlinearity, gamma encoding, or often simply gamma, is the name of a nonlinear operation used to code and decode luminance or tristimulus values in video or still image systems. [cite book | title = Digital Video and HDTV …
42Gamma spectroscopy — The gamma ray spectrum of natural uranium, showing about a dozen discrete lines superimposed on a smooth continuum, allows the identification the nuclides 226Ra, 214Pb, and 214Bi of the uranium decay chain. Gamma ray spectroscopy is the… …
43POA CALFOS — is the improved Post Operational Archive version of the Faint Object Spectrograph (FOS) calibration pipeline, an earlier instrument aboard the Hubble Space Telescope (HST). The current version corrects for image motion problems that have led to… …
44Cosmic Origins Spectrograph — The Cosmic Origins Spectrograph on its handling cart in the Spacecraft Systems Development Facility cleanroom at the Goddard Space Flight Center The Cosmic Origins Spectrograph (COS) is a science instrument that was installed on the Hubble Space… …
45Colorimetry (chemical method) — This article is about a chemical measurement method. For more general color measurement, see Colorimetry. Not to be confused with Calorimetry. A Duboscq colorimeter, 1870, which allowed visual comparison of the absorptions in two columns of… …
46Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …
47Multiangle light scattering — (MALS) is a technique for determining, independently, the absolute molar mass and the average size of particles in solution, by detecting how they scatter light. Collimated light from a laser source is most often used, in which case the technique …
48Colorimetry — This article is about measurement of color. For use in chemistry, see Colorimetry (chemical method). Not to be confused with Calorimetry. Colorimetry is the science and technology used to quantify and describe physically the human color… …
49Systematic error — Systematic errors are biases in measurement which lead to the situation where the mean of many separate measurements differs significantly from the actual value of the measured attribute. All measurements are prone to systematic errors, often of… …
50Midcourse Space Experiment — The Midcourse Space Experiment (MSX) is a Ballistic Missile Defense Organization satellite experiment (unmanned space mission) to map bright infrared sources in space. MSX offered the first system demonstration of technology in space to identify… …
